Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Zimmah
Usage: A man of the tribe of Levi living at the time of Divided Monarchy, first mentioned at 1Ch.6.20; son of: Shimei (H8096V); father of: Joah (H3098H) § Zimmah = "plotter" 1) a Gershonite Levite, son of Jahath 2) another Gershonite, son of Shimei; perhaps the same as 1 above 3) father or ancestor of Joah, a Gershonite in the reign of Hezekiah